Two main types of the engine

Two main types of the engine

The two most common types of engine for land vehicles are the petrol engine and the diesel engine.

Petrol engines are usually lighter and smaller than diesel engines. This makes them cheaper, and this is why most cars and motorbikes use petrol engines. Petrol engines are also less than diesel engines. They usually go faster. On the other hand, diesel engines use less fuel and last longer than petrol engines, and this is why larger vehicles such as trucks and trains use them. They are also safer than petrol engines, because they are less danger of fire.

There are two main types of petrol engine – 4-stroke and 2-stroke. All cars and larger motor-cycles use 4-stroke engines. But most smaller motorbikes use 2-stroke engines. These are lighter and smaller than 4-stroke engines, and are therefore cheaper.

Answer the questions:

1. Which is the lightest of the engines?

2. Which is the least expensive?

3. Which is the noisiest?

4. Which is the largest?

5. Which is the safest? Why?

6. Which uses the least fuel?

6. So, our lesson is going to a conclusion.

Let’s summarize the results of our work:

During the lesson you were working hard.

You knew professional terms, learned the translation of the words, practiced in reading and speaking English.

Some students got excellent and good marks.

Your homework for the next lesson is:

To learn new words

Thank you, the lesson is over, good bye.

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